High-tension and telephone line construction.



w A. L. HARRINGTON. HIGH TENSION AND TELEPHONE LINE CONSTRUCTION. APPLICATlON FILED NOV. 6, 19|5.

1,203,540. L Patented Oct. 31,1916.

UNITED STATES PATENT "OFFICE.

- ALFRED LEWIS HARRINGTON, OF RALEIGH, N OBTH CAROLINA.

HIGH-TENSION AND TELEPHONE IiINE CONSTRUCTION.

To all whom it may concern:

Be it known that-I, ALFRED L. HARRING- TON, a citizen of the United States, and a resident of Raleigh, in the county of Wake and State of North Carolina, have invented a new and Improved High-Tension and Telephone Line Construction of which the following is a full, clear, and exact description.

expense of erection and maintenance results.

More specifically the object of the invention is to provide an improved telephone line in which the two sides of the circuit are strung in such a manner that each side follows approximately a spiral line which is disposed one hundred and eighty degrees from the other line with relation to an axis passing through the spirals or helices, this arrangement being cbtained by disposing the cross arms for the telephone wires fortyfive degrees to the vertical or the pole and alternating cross-bars being oppositely inclined, and the Wires that are strung on the ends of the cross-arm being crossed be tween every other pair of cross-arms, with the point of crossing midway between such pairs of cross-arms.

For a more complete understanding of the invention reference is to be had to the following descripticn and claims taken in connection with the accompanying drawing which illustrates one embodiment of the invention and wherein similar characters of reference indicate corresponding parts in all the views.

Figure l is a perspective View of the improved telephone line construction; Fig. 2 is a plan View; Fig. 3 is a plan view of a pole, a cross-arm and mounting therefor; Fig. at is a side view of the bracket or mounting attached to the pole and supporting a cross-arm; Fig. 5 is a perspective view of the cross-arm bracket or mounting; Fig. 6 IS a Perspective view of a pole, showing Specification of Letters Patent.

Patented Oct. 31, .1916.

Application filed November 6, 1915. SeriaINo. 60,171.

the high tension power wires and telephone wires connected with the cross-arms thereof. Referring to the drawing, 1 designates the usual line supporting poles which are provided, as shown in Fig. 6, with horn zontal cros's-arms 2 for high tension power wires 3, and mounted at a lower point on each .pole is a cross-arm at which is disposed atan angle oflforty-five degrees to the axis oftheipole so that one end is higher than the other. as shown in Fig. l, oppositely disposed so that eachend of every cross-arm 4 will be higher 'orlower than the corresponding ends of the next cross-arms in either direction therefrom. These cross-arms t are rigidly held'on the poles 1 by the use of brackets '5. Each bracket comprises a cast plate 6. of square form and having extending from one face corner lugs '7. In the center of the bracket 5 is an opening 8.so that a bolt or vequivalent fastening 9" can pass there through. The bolt 9* serves to fasten the crossarm 4: to the pole 1, the fastening passing through the cross-arm and being driven or forced into the pole 1. The bracket 5 is so positioned that the corners will lie in vertical and horizontal lines and the crossarml is of such width as to fit between the lugs 7. The brackets permit of the crossarms being placed in either of the two angles shown in Fig.1. The telephone line wires 9 and 10 are fastened to the insulators 11 on the cross-arms at, and these wires have alternate sections a and a crossing each other at the points 12 and 13. and alternate sections 12' and Z) which are parallel when viewed in plan as shown in Fig. 2, but as the crossarms are alternately oppositely inclined the corresponding ends of the sections a and a and Z) and b are not in the same level. EX- plained in a general way, each telephone line wire 9 and 10 follows the form approximately of a helix, the axis of which coincides with the centers of the cross-arms 4c, and the two lines are disposed one hundred and eighty degrees apart with respect to this axis. The convolutions of the helices are of such length as to extend from a given cross-arm 4 to the fifth cross-arm therefrom. As for instance, a convolution of the wire 10 begins at c or the extreme left c ossarm Fig. 2 and ends at 0, the extreme right crossarm, Fig. 2. This method of stringing the telephone line wires is extremely simple in- These arms on alternate poles are,

expensive and carried on with despatch, and the Wires have corresponding portions widely spaced apart and effectively transposed With respect to the high tension power wires.

From the foregoing description taken in connection with the accompanying drawing, the advantages of the construction and method of operation will be readily understood by those skilled in the art to which the invention appertains, and while I have described the principle of operation, together withthe structure which I now consider to be the best embodiment thereof, I desire to have it understood that the structure shown is merely illustrative and that such changes may be made when desired as fall within the scope of the appended claims.

On the rear of the bracket 5 are ribs 5 which engage the pole 1 and prevent the plate from turning on the fastener 9 as a center.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. In a line construction, the combination of a plurality of poles, members fastened to the poles, and wires supported wholly by the members, the wires being spaced apart at all points and strung helically, with each convolution equal to fourtimes the distance be tween adjacent poles.

2. The combination of telephone line wires, supports therefor including crossarms arranged at approximately forty-five degrees to the horizontal, and alternate cross-arms being oppositely inclined, the

line wires crossing as viewed in plan atpoints between alternate pairs of. crossarms, .the wires being out of contact with each other at all points.

3. In a telephone line construction, the combination of spaced supporting poles,

cross-arms fastened thereto and arranged at,

ALFRED LEWIS HARRINGTON.

lVitnesses M. Wises,

C. N. RADCLIFFE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. O. 

